KR20180122279A - Elevator landing door lock safety system - Google Patents

Abstract

Access preventing systems of elevator landing door locks comprise: a landing door lintel for landing door of an elevator system; a lock mechanism mounted on the lintel, and arranged to enable to unlock of the elevator landing door; and an indicator feature on the lintel arranged on the lock mechanism so as to indicate a position of a blocked locking mechanism. The indicator feature is at least brittle or fragile in order to permit access for the lock mechanism when the indicator feature is broken.

Description

[0001] ELEVATOR LANDING DOOR LOCK SAFETY SYSTEM [0002]

The present disclosure relates to elevator systems and, more particularly, to elevator landing door lock safety devices.

Elevator systems include a locking mechanism that can be used by mechanics, technicians, and other authorized persons. The locking mechanisms can be part of the lintel of the elevator systems and are therefore easily accessible by anyone. However, it may be required by safety regulations to prevent operation of elevator locking mechanisms and / or access to them at certain times (e.g., when a technician or mechanic performs a maintenance operation) and / Or it is beneficial. Thus, safety devices that prevent access to elevator system locking mechanisms may be desirable.

Access blocking systems of elevator landing door locks are provided, in accordance with some embodiments. The access protection system includes a landing door for a landing door of an elevator system, a lock mechanism mounted on the lintel and arranged to enable unlocking of the elevator landing door, and a locking mechanism Wherein the indicator feature includes an indicator feature on the lintel that is aligned with the lock mechanism to indicate a position of the indicator mechanism to allow access to the lock mechanism when the indicator feature is broken, It is fragile or fragile.

In addition to or in addition to one or more of the features described above, alternatives to the access protection systems, further embodiments, the Lintel includes a Lintel frame and a Lintel cover, wherein the Lintel cover is mounted on the Lintel frame, Has the indicator feature and is susceptible to breakage to provide access to the locking mechanism.

In addition to or in addition to one or more of the features described above, an alternative to the access protection systems, further embodiments may include a safety plate installed in the landing door lintel at the location of the indicator feature, The safety plate includes the indicator features and a safety operation is performed when the safety plate is broken.

In addition to or in addition to one or more of the features described above, the safety operation as an alternative to the access protection systems, further embodiments, is the triggering of the safe operation mode of the elevator system.

In addition to or in addition to one or more of the features described above, alternate embodiments of the access protection systems, the safety plate is installed between the Lintel frame and the Lintel cover.

In addition to or in addition to one or more of the features described above, alternate embodiments of the access protection systems may further comprise a safety chain, wherein a part of the wiring of the safety chain is located on the safety plate, When the safety plate is broken, the safety chain is electrically broken or electrically tripped.

In addition to one or more of the features described above, or as an alternative to the access protection systems, further embodiments include returning the elevator system to a normal operating mode when at least one of the lintal cover or the safety plate has been replaced can do.

In addition to or in addition to one or more of the features described above, alternate embodiments of the access protection systems, further embodiments, may include the safety plate being a printed circuit board.

In addition to or in addition to one or more of the features described above, alternate of the access protection systems, further embodiments may include at least one fastener that securely attaches the Lintel cover to the Lintel frame.

In addition to or in addition to one or more of the features described above, alternate embodiments of the access protection systems include, as further embodiments, the indicator feature being at least one of the above mentioned linteal holes, dives, indentations, .

In addition to one or more of the features described above, or as an alternative to the access protection systems, further embodiments may include an access tool for destroying the Lintel at the indicator feature

In addition to or in addition to one or more of the features described above, alternate embodiments of the access protection systems, the access tool is a drill.

In addition to or in addition to one or more of the features described above, in an alternative embodiment of the access protection systems, when the access tool breaks the Lintel at the indicator feature, the safety chain of the elevator system is electrically damaged Or may be electrically tripped.

In addition to or in addition to one or more of the features described above, at least one of the indicator features, the lintel, or the safety plate as an alternative to the access protection systems, further embodiments includes one or more fragile portions, The one or more frangible portions are positioned to provide access to the locking mechanism and to assist in the breakage of the Lintel or the safety plate at the location of the indicator feature.

In addition to, or as an alternative to the one or more of the features described above, the one or more frangible portions as further embodiments are arranged to break the safety chain wiring when the lintel or safety plate is broken do.

The foregoing features and elements may be combined in various combinations without exclusions, unless otherwise explicitly indicated. These features and elements, as well as their operation, will become more apparent in light of the following description and accompanying drawings. It is to be understood, however, that the following description and drawings are intended to be illustrative and for the best of illustrative and non-limiting.

The subject matter is specifically mentioned and separately claimed at the conclusion of the specification. The foregoing and other features and advantages of the present disclosure will be apparent from the following detailed description taken in conjunction with the accompanying drawings, in which:
Figure 1 is a schematic illustration of an elevator system that may be employed in various embodiments of the present invention;
Figure 2 is a schematic illustration of a landing floor of an elevator system with a hall call that may be employed in various embodiments of the present invention;
Figure 3A is a schematic illustration of an elevator door lock safety device according to one embodiment of the present invention;
Figure 3b is a schematic illustration of the elevator door lock safety device of Figure 3a inserted into an elevator door lock;
4A is a schematic illustration of an access protection system for elevator landing door locks in accordance with an embodiment of the present invention;
Figure 4b is a schematic illustration of a partial cross-section of the access protection system of Figure 4a;
5A is a schematic illustration of another access protection system in accordance with one embodiment of the present invention;
5B is an exemplary top view of the access protection system of FIG. 5A showing line BB; FIG.
6A is a schematic illustration of another access protection system in accordance with one embodiment of the present invention;
6B is an exemplary top view of the access protection system of FIG. 6A showing line BB; FIG. And
7 is a schematic illustration of another access protection system according to an embodiment of the present invention.

Figure 1 shows an elevator car 103, a counterweight 105, a roping 107, a guide rail 109, a machine 111, A lift controller 113, and an elevator controller 115. The elevator system 101 shown in Fig. The elevator elevator car 103 and the counterweight 105 are connected to each other by a roping 107. The roping 107 may, for example, be comprised of or comprise ropes, steel cables, and / or coated steel belts. The counterbalance 105 is configured to balance the load of the elevator car 103 and is disposed in the elevator shaft 117 and in the opposite direction to the counterweight 105 along the guide rail 109 and simultaneously, So as to enable the movement of the elevator car 103.

The roping 107 is engaged with the machine 111, which is part of the overhead structure of the elevator system 101. The machine 111 is configured to control the movement between the elevator car 103 and the counterweight 105. A position encoder 113 may be mounted on the upper sheave of the speed-regulator system 119 and may be provided within the elevator shaft 117 to provide position signals related to the position of the elevator car 103 Lt; / RTI > In other embodiments, the position encoder 113 may be mounted directly to the moving component of the machine 111, or may be located in other positions and / or configurations known in the art.

The elevator controller 115 is located in the controller room 121 of the elevator shaft 117 and is configured to control the operation of the elevator system 101, and in particular the elevator cargo area 103, as shown. For example, the elevator controller 115 may provide driving signals to the machinery 111 to control acceleration, deceleration, leveling, stop, etc. of the elevator car 103. The elevator controller 115 may also be configured to receive position signals from the position encoder 113. The elevator elevator car 103 stops at one or more of the landings 125 controlled by the elevator controller 115 when moving up or down within the elevator shaft 117 along the guide rails 109 . Although shown in the controller room 121, those skilled in the relevant art will recognize that the elevator controller 115 may be configured and / or located at other locations or positions within the elevator system 101. [

The machinery 111 may comprise a motor or similar drive mechanism. According to the embodiments of the present disclosure, the machine 111 is configured to include an electrically driven motor. The power supply for the motor may be any power source, including a power grid supplied to the motor, in combination with other components. Although illustrated and described as a roofing system, an elevator system employing other methods and mechanisms for moving the elevator car in the elevator shaft may employ the embodiments of the present disclosure. Figure 1 is a non-limiting example provided merely by way of example and for purposes of explanation.

2 is a schematic illustration of an elevator system 201 that may be incorporated into the embodiments disclosed in this application. As shown in FIG. 2, the elevator car 203 is located in the landing 225. Elevator elevator car 203 may be referred to as landing 225 by a passenger or mechanic 227 who wishes to perform maintenance on elevator system 201 or to move to another floor within the building. In some situations, the mechanic 227 may want to lock the elevator doors so they can not be opened or closed (e.g., to prevent unauthorized persons from accessing the elevator system 201) ). For example, this situation can occur when the mechanic 227 wants to enter the elevator pit to perform maintenance therein. This control or locking can be accomplished by a door lock in the lintel 229 (which can be located at each landing 225) of the elevator system 201. It may be beneficial to prevent unauthorized persons from accessing the elevator door lock. Thus, the embodiments provided in this application are directed to elevator door lock safety devices that reliably prevent unauthorized access to elevator door locks.

Turning to Figures 3a-3b, a traditional elevator lintel door lock 331 is shown. The elevator lintel door lock 331 includes a key 333 configured to fit within the keyway 335 of the lintel 329. The keyway 335 and key 333 are selected to operate to enable the person authorized to obtain access to the elevator cargo bay or elevator shaft located in the individual landings to open the elevator landing door. As shown in FIG. 3B, a key 333 inserted into the key groove 335 is shown. The user of the key 333 can unlock the elevator door lock lock 331 with the key 333 in the key groove 335. [ As will become clear, unauthorized persons may gain inadequate access to the elevator lintel door lock 331 because the access to the elevator lintel door lock 331 is not blocked so that the elevator landing doors can be improperly opened. In addition, the keyway 335 may provide an aesthetically pleasing facade within the lintel 329.

Embodiments provided in this application are directed to concealing and / or removing keyways. According to some embodiments, the landing door can not be opened from landing because there is no longer access to the locking mechanism. That is, emergency access to the landing door locking mechanism is only allowed through the specific operations described in the present application. These operations may enable access to the landing door locking mechanism to allow opening of the landing doors and thus provide access to the elevator shaft. Access may be desired for maintenance operations, for rescuing trapped passengers, and / or for other authorized purposes. Embodiments of the present invention may be used in situations where, in an emergency, a breaking tool is required to perform a corruption operation (e.g., a larger hole) to obtain access to the locking mechanism installed in direct alignment behind the indicator feature. Very small marker features (e.g., 1 mm diameter holes, divots, depressions) on a landing door lintel marking a location that can be used to perform a drilling operation, , Marking, etc.). In an example where a larger hole is drilled in Lintel, a screwdriver or triangle key may be inserted into a larger hole to operate the locking mechanism. Moreover, in some embodiments, Lintel is designed with a fuse spare part. That is, the electrical circuit breaks when performing a breakage operation (e.g., drilling, hammering, etc.) and trips or breaks the electrical safety chain of the elevator system. In this way, after performing the damage operation, it is required to change or replace the lintel in order to make the elevator system a normal service. That is, a breaking action is an operation that causes the elevator system to enter a safe mode until either the safety chain is opened or the landing door is repaired to its original state

Turning now to Figures 4a-4b, schematic illustrations of an access protection system 400 in accordance with an embodiment of the present invention are shown. 4A is a perspective isometric view of the access protection system 400 and FIG. 4B is a partial cross-sectional view of the access protection system 400. FIG. Access protection system 400 is provided in Lintel 429 of the elevator landing door, similar to that described and illustrated above.

Access Protection System 400 Lintel 429 is formed of Lintel cover 402 and Lintel frame 404, but in some embodiments Lintel may be a single or unified structure. Lintel cover 402 may be installed over lintel frame 404 and provide an aesthetic facade upon elevator landing. Lintel cover 402 includes an indicator feature 406 that provides an indication of the position of the lock mechanism 408 located within the lintel frame 404. The locking mechanism 408, when actuated, enables opening of the landing doors as described above. The Lintel frame 404 includes a keyway 410 that provides access to the lock mechanism 408. [ The Lintel cover 402 blocks access to the lock mechanism 408.

The indicator feature 406 is aligned with the key groove 410 so that the authorized person observing the lintel 429 from the landing will know the location of the key groove 410 and the locking mechanism 408. The indicator features 406 may take various forms. In one non-limiting example, the indicator feature is a small hole or aperture formed in the Lintel cover 402. In one such example, the hole may be of a size of 1 mm diameter. To gain access to the key groove 410 and the locking mechanism 408, an authorized person may use the access tool 412 at the point of the indicator feature 406 to open a larger hole. The key or similar item may then be used to unlock the lock mechanism 408 and the landing door may be opened.

In another embodiment, shown schematically in FIG. 4B, the indicator feature 406 is indentation or divot within the surface of the Lintel cover 402. Again, the access tool (illustratively shown in FIG. 4A) can be used to break or puncture the surface of the Lintel cover 402 to allow key or other items to be inserted into the keyway 410 have. In some embodiments, the indicator features may be markings, such as dots, symbols, text, circles, etc., on the surface of the lintel cover 402. In other embodiments, the indicator features may be fragile or fragile sections of the lintel cover 402 such that a hammer, screwdriver, etc., or other access tool may be attached to the lock mechanism 408 and / 410 at the location of the lintel cover 402. As shown in FIG.

Lintel cover 402 is arranged to prevent unauthorized access to lock mechanism 408. Specifically, when installed, the Lintel cover 402 prevents access to or keyhole 410 and / or locking mechanism 408 from being viewed. However, an authorized person may perform a corrupt operation to obtain access to the key groove 410 and / or the lock mechanism 408. [

Lintel cover 402 is a replaceable part or component that can be fixedly attached to lintel frame 404. In one non-limiting embodiment, the Lintel cover 402 is formed of aluminum or sheet metal and is formed of one or more fasteners, adhesives, bonding processes, latches, fasteners, As shown in Fig. For example, as shown in FIG. 4A, a fastener 414 used to securely connect, attach or mount a Lintel cover 402 to a Lintel frame 404 is illustrated by way of example. When the breakage operation is performed using the access tool 412, the lintel cover 402 can be replaced with a new lintel cover 402. Alternate lintel covers may cover key groove 410 and / or lock mechanism 408 to prevent access thereto.

Turning now to Figures 5a-5b, an alternative embodiment of an access protection system 500 in accordance with the present disclosure is shown. 5A is a side cross-sectional view of the access protection system 500 and FIG. 5B is a plan view along line B-B of FIG. 5A. Access protection system 500 includes Lintel 529 having Lintel cover 502 and Lintel frame 504 as shown and described above. Moreover, as shown, the Lintel cover 502 includes an indicator feature 506, shown in a depot on the surface of the Lintel cover 502. Access tool 512, shown schematically as a drill, can be used to break lintel cover 502 to gain access to lock mechanism 508 that can be used for landing door unlocking of the elevator system.

In the embodiment of Figures 5a-5b, the access protection system 500 includes an electrical safety chain 516 of the elevator system. The electrical safety chain 516 provides electrical circuitry arranged to provide a safety feature for an elevator system to be recognized by those skilled in the relevant arts. For example, the electrical safety chain 516 may include a safety or maintenance operation that limits various aspects of the elevator car, including, for example, the speed of movement of the elevator car in the elevator shaft, Mode. ≪ / RTI >

As shown in Figures 5a-5b, the electrical safety chain 516 includes a wiring 518 and a safety plate 520. In some embodiments, the safety plate 520 may be a printed circuit board. The safety plate 520 includes a portion 518a of the wiring 518 and is connected to the remainder of the wiring at one or more junctures or connectors 522. [ The connectors 522 are arranged so that the safety plate 520 and the accompanying wiring thereon can be replaced without the need to replace the entire electrical safety chain 516.

As schematically shown, the indicator feature 506 is aligned with the section of the wiring portion 518a on the safety plate 520. [ Thus, when the access tool 512 is used to break through or open the lintel cover 502 to gain access to the lock mechanism 508, the electrical safety chain 516 will be broken and therefore the elevator system It will trigger the safe operation mode.

In some embodiments, a safety plate 520 having a wiring portion 518a thereon can be fixedly attached to the lintel cover 502 such that the safety plate 520 and the lintel cover 502 can be single- Parts. In such embodiments, after performing the breakage operation, the lintel cover 502 and the safety plate 520 can be replaced with unbroken replacements, the electrical safety chain 516 can be rebuilt, Mode.

Although described as breaking the wiring portion 518a of the electrical safety chain 516, various other mechanisms may be employed without departing from the scope of the present invention. For example, when the access tool 512 is used to puncture the lintel cover 502 and the safety plate 520, the fuse may be tripped or a short may be affected. Alternatively or in combination, the wiring portion 518a may be separate or independent of the wiring 518 of the electrical safety chain 516. [ In such embodiments, the safety plate 520 may be arranged with various electronic components used to deliver commands or signals to the elevator controller to perform the safety operation. The safety operation may include a safety operation mode triggering. These electronic components may include, but are not limited to, processors, memory, communication protocol components, buses, and the like. In some embodiments, breakage of the electrical safety chain 516 may prevent any movement of the elevator car up until the electrical safety chain 516 is repaired. Other safety actions that may be performed when the safety plate 520 is broken include message triggering to be communicated to authorized people or devices (e.g., monitoring system, fire department, maintenance department, etc.) But is not limited to.

Turning now to Figures 6a-6b, an alternative embodiment of an access protection system 600 in accordance with the present disclosure is shown. 6A is a side cross-sectional view of an access protection system 600 and FIG. 6B is a plan view along line B-B of FIG. 6A. Access protection system 600 includes lintel 629 having lintel cover 602 and lintel frame 604 as shown and described above. Moreover, as shown, the lintel cover 602 includes an indicator feature 606, shown as a frangible portion of the surface of the lintel cover 602. An access tool 612, shown schematically as a hammer / chisel, can be used to break the lintel cover 602 to gain access to a locking mechanism 608 that can be used for landing door unlocking of the elevator system have.

Similar to the embodiment shown in Figures 5a-5b, the access protection system 600 includes an electrical safety chain 616 of the elevator system. The electrical safety chain 616 includes a wiring 618 and a safety plate 620 as described above. The safety plate 620 includes a portion 618a of the wiring 618 and is connected to the rest of the wiring at one or more connectors 622. [ The connectors 622 are arranged so that the safety plate 620 and the associated wiring thereon (the wiring portion 618a) can be replaced without the need to replace the entire electrical safety chain 616. [ As schematically shown, the indicator feature 606 is aligned with the section of the wiring portion 618a on the safety plate 620. When the access tool 612 is used to puncture or puncture the lintal cover 602 at the indicator feature 606 to obtain access to the lock mechanism 608 the electrical safety chain 616 Will be disconnected and thus will trigger the safe operation mode of the elevator system and / or other operations described above will be performed.

As shown schematically in FIG. 6B, the indicator feature 606 may include one or more frangible portions 624. The frangible portions 624 of the indicator feature 606 may be arranged to have a portion of the lintal cover 602 and / or the indicator feature 606 to be broken in a predetermined manner to affect the desired result have. For example, in some embodiments, as shown schematically in FIG. 6B, the frangible portions 624 can penetrate and break the safety chain wiring portion 618a on the safety plate 620 The portion of the lintel cover 602 and the indicator portion 606 to break into the shapes of the triangle having the triangular shape.

Turning now to FIG. 7, an alternative embodiment of an access protection system 700 in accordance with the present invention is shown. FIG. 7 illustrates a side cross-sectional view of an access protection system 700. The access protection system 700 includes a safety plate 720 installed in Lintel 729. [ In this embodiment, lintel 729 is a single structure (not a separate frame / cover). As shown, indicator features 706 are formed in lintel 729. In such an embodiment, the indicator feature 706 may be a hole or other aperture having a facing 720a of an externally visible safety plate 720. In some embodiments, the surface 720a of the safety plate 720 may be painted or otherwise hidden, or at least arranged to be difficult to see by a normal observer. The access tool 712, shown schematically with a hammer / chisel, can be used to break the safety plate 720. Embodiments Similar to the embodiments described above, the access protection system 700 includes an electrical safety chain 716 of the elevator system. The electrical safety chain 716 includes a wiring 718 and a safety plate 720 as described above. The safety plate 720 includes a portion 718a of the wiring 718 and is connected to the remainder of the wiring in one or more connectors (as shown above). The connectors are arranged such that the safety plate 720 and the accompanying wiring (wiring portion 718a) thereon can be replaced without the need to replace the entire electrical safety chain 716.

As schematically shown, the indicator features 706 are aligned with the safety plate 720. Thus, the access tool 712 is used to puncture or break the safety plate 720, thus breaking the electrical safety chain 716 and breaking the normal operation of the elevator system. Moreover, in some embodiments, by breaking the safety plate 720, the mechanic or other authorized person can obtain access to the lock mechanism (not shown).

In the exemplary embodiment of Figure 7, a relatively large hole (indicator feature 706) may be provided on lintel 729 to have direct access to safety plate 720. The surface 720a of the safety plate 720 can be arranged to provide acceptable aesthetics and provide no direct, unauthorized access to the safety chain 716. [ That is, the table 720a may be painted in color or may be a safety plate 720 made of a material that matches or substantially matches the color, pattern, texture, material, or other aesthetic feature of the Lintel 729 For example, a printed circuit board). Once the access tool 712 is broken, the portion 718a of the wiring 718 of the safety chain 716 on the safety plate 720 opens the safety circuit and, in some embodiments, Provide access to (E.g., a safety structure, a maintenance in-shaft, etc.), then normal operation is re-entered by replacing the safety plate 720 and completing the circuitry of the safety chain 716 Or may be restarted. Thus, in some embodiments, the Lintel cover may be excluded and may provide a safety function as in the embodiments described above.

As a non-limiting example, when installed, a lintel cover according to the present invention will provide an indicator feature aligned to a locking mechanism that is part of a Lintel frame. The indicator feature indicates where the door locking mechanism is located within the lintel in relation to the lintel cover. In this example, the indicator feature is a small hole (e.g., 1 mm diameter) that can be used to position and position an access tool, e.g., a drill. The drill can be used to drill a centered hole on the indicator feature and thus a larger hole is pierced or drilled in the lintel cover. When puncturing or drilling of the lintel cover occurs, the electrical safety chain may be triggered to interrupt or minimize the operation of the elevator car in the elevator shaft. Moreover, the larger holes allow access to a locking mechanism that can be operated using a tool or device such as a key or a screwdriver. Thus, an authorized person can unlock the landing door and gain access to an elevator shaft (e.g., for an emergency or to perform maintenance). In order to bring the elevator system back into service, the lintel cover must be replaced. That is, if the lintel cover is damaged or absent, the elevator system may not operate or may only operate in the safe operating mode.

Advantageously, the embodiments provided in this application enable a security and safety mechanism to prevent access to the elevator shaft. Moreover, the embodiments provided in this application may enable safe operation modes when access to the lock mechanism is achieved. That is, preferably, when the landing doors are manually openable by operation of the locking mechanism, the elevator car can not be operated or can only be operated in the safe operation mode, thereby providing additional safety features. Furthermore, preferably, lintel covers can be employed that can provide aesthetic feel to the landing door lintels, without easily or easily indicating the position of the locking mechanism.

The use of the terms "a," " an, "" the ", and the like, and the like, It should be understood that similar reference is made to both single and plural. The term "about " used in connection with quantities is intended to encompass the stated values and to be dependent on the context (e.g., including the degree of error in relation to a particular amount of measurement). All ranges disclosed in this application encompass endpoints and endpoints can be merged with each other independently.

While this disclosure has been described in connection with a limited number of embodiments, it should be readily understood that the disclosure is not limited to such disclosed embodiments. Rather, the disclosure is not so far described, but may be modified to incorporate any number of modifications, changes, substitutions, combinations, sub-combinations, or equivalent arrangements consistent with the spirit and scope of the invention. have. In addition, although various embodiments of the present disclosure have been described, it will be appreciated that aspects of the disclosure may include only some of the described embodiments.

For example, although illustrated with a limited number of illustrated access tools, one of ordinary skill in the art will appreciate that any type of tool or device may be used to access the Lintel cover to obtain access to the lock mechanism of embodiments of the present invention. It can be used to break through. Moreover, although shown and described as examples of a limited number of keys, the unlocking devices of embodiments of the present invention may have any geometric shape including, but not limited to, triangular, square, hexagonal, octagonal, .

Accordingly, the present disclosure is not to be seen as limited to the foregoing description, but is only limited by the scope of the appended claims.

Claims (15)

An access control system for an elevator landing door lock,
A landing door lintel for a landing door of an elevator system;
A lock mechanism mounted on the lintel and arranged to enable unlocking of the elevator landing door; And
An indicator feature on said lintel that is aligned with said locking mechanism to indicate the position of the locking mechanism that has been intercepted, and wherein when said indicator feature is broken, said indicator Wherein the accessory feature is at least fragile or fragile. The lithographic apparatus of claim 1, wherein the Lintel comprises a Lintel frame and a Lintel cover, wherein the Lintel cover is mounted on the Lintel frame and the Lintel cover is broken to provide access to the locking mechanism Easy, access prevention system. The apparatus of any one of claims 1 to 2, further comprising a safety plate installed in the landing door lintel at a location of the indicator feature, the safety plate comprising the indicator feature, Wherein a safety operation is performed when the accessory is broken. 4. The system according to claim 3, wherein the safety operation is a triggering of a safe operation mode of the elevator system. The access protection system according to any one of claims 3 to 4, wherein the safety plate is installed between the lintel frame and the lintel cover. The safety chain according to any one of claims 3 to 5, further comprising a safety chain, wherein when a part of the wiring of the safety chain is located on the safety plate and the safety plate is broken, the safety chain is electrically broken Wherein the access point is electrically tripped. The access protection system according to any one of claims 3 to 6, wherein the elevator system is returned to a normal operating mode when at least one of the lintal cover or the safety plate has been replaced. The access protection system according to any one of claims 3 to 7, wherein the safety plate is a printed circuit board. The access protection system according to any one of claims 2 to 8, further comprising at least one fastener for securely attaching the lintel cover to the lintel frame. The access control system according to any one of claims 1 to 9, wherein the indicator feature is at least one of a hole, a divot, a depression, a marking, or a character on the lintel. The access protection system according to any one of claims 1 to 10, further comprising an access tool for destroying the Lintel at the indicator feature. 12. The system of claim 11, wherein the access tool is a drill. The access protection system according to any one of claims 11 to 12, wherein the safety chain of the elevator system is electrically broken or electrically tripped when the access tool breaks the Lintel at the indicator feature. The method of any one of claims 1 to 13, wherein at least one of the indicator feature, the lintel, or the safety plate comprises one or more brittle parts, the one or more brittle parts Access and provides for damage to the Lintel or the safety plate at the location of the indicator feature. 15. The system of claim 14, wherein the one or more frangible portions are arranged to break the safety chain wiring when the lintel or safety plate is broken.

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